Base | Representation |
---|---|
bin | 111001011101… |
… | …0000101001001 |
3 | 2002200101001020 |
4 | 1302322011021 |
5 | 30202403223 |
6 | 2553343053 |
7 | 514015104 |
oct | 162720511 |
9 | 62611036 |
10 | 30122313 |
11 | 16004381 |
12 | a107a89 |
13 | 6318870 |
14 | 400173b |
15 | 29a01e3 |
hex | 1cba149 |
30122313 has 8 divisors (see below), whose sum is σ = 43252608. Its totient is φ = 18536784.
The previous prime is 30122311. The next prime is 30122321. The reversal of 30122313 is 31322103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30122313 - 21 = 30122311 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30122292 and 30122301.
It is not an unprimeable number, because it can be changed into a prime (30122311) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386145 + ... + 386222.
It is an arithmetic number, because the mean of its divisors is an integer number (5406576).
Almost surely, 230122313 is an apocalyptic number.
It is an amenable number.
30122313 is a deficient number, since it is larger than the sum of its proper divisors (13130295).
30122313 is a wasteful number, since it uses less digits than its factorization.
30122313 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 772383.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 30122313 is about 5488.3798155740. The cubic root of 30122313 is about 311.1449612498.
Adding to 30122313 its reverse (31322103), we get a palindrome (61444416).
The spelling of 30122313 in words is "thirty million, one hundred twenty-two thousand, three hundred thirteen".
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